secondary standard r

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secondary standard reference surface
英 [secondary standard reference surface]
美 [secondary standard reference surface]

中文释义

[计] 二级标准磁盘面

单词分析

单词结构：

secondary standard reference surface

字母数：36

记忆提示

🎯 重点记忆：

  • 单词拼写：secondary standard reference surface
  • 核心含义：[计] 二级标准磁盘面

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更新时间：2026-09-21 01:08:57